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Gao Z, Liu Y, Lin W, Lian H, Meng Z. A microneedle patch realizes weight loss through photothermal induction of fat browning. Biomater Sci 2024; 12:1726-1737. [PMID: 38357975 DOI: 10.1039/d3bm01767b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
As a globally prevalent disease, obesity leads to many chronic diseases, so it is important to develop safe and effective treatments with fewer side effects and lasting weight loss. In this study, we developed a biodegradable hyaluronic acid microneedle patch loaded with polydopamine nanoparticles and mirabegron, which directly acted on subcutaneous white adipose tissue, and then induced browning of white adipose tissue through mild photothermal therapy. The approach showed excellent browning-promoting ability and biocompatibility. It is noteworthy that the weight of untreated mice increased by 9%, while the weight of obese mice decreased by nearly 19% after photothermal treatment. In addition, when mirabegron was used in combination with photothermal therapy, the weight loss of obese mice was more significant, with a weight loss of about 22%. This microneedle patch exhibited attractive potential for body slimming.
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Affiliation(s)
- Zichun Gao
- School of Medical Devices, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yixuan Liu
- School of Medical Devices, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Wenjiao Lin
- Qingmao Technology (Shenzhen) Co., Ltd., China
| | - He Lian
- School of Medical Devices, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Zhaoxu Meng
- School of Medical Devices, Shenyang Pharmaceutical University, Shenyang, 110016, China
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2
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Cao Q, Li B, Lian H, Li J. Mixed squamous cell and glandular papilloma of the bronchus. Pulmonology 2024; 30:96-97. [PMID: 37541933 DOI: 10.1016/j.pulmoe.2023.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 07/20/2023] [Accepted: 07/21/2023] [Indexed: 08/06/2023] Open
Affiliation(s)
- Q Cao
- Department of Pathology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong 264100, China
| | - B Li
- Department of Pathology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong 264100, China
| | - H Lian
- Department of Radiology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong 264100, China
| | - J Li
- Department of Radiology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong 264100, China.
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3
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Liu X, Guan P, Mu J, Meng Z, Lian H. Metal-rich cascade nanosystem for dual-pathway ferroptosis resistance regulation and photothermal effect for efficient tumor combination therapy. Biomater Sci 2023; 11:3906-3920. [PMID: 37092601 DOI: 10.1039/d3bm00189j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
Despite the therapeutic response of ferroptosis in various tumors, ferroptosis resistance has been found in numerous studies, significantly hindering the progress of ferroptosis anti-tumor therapy. Herein, we propose a metal-rich cascade nanosystem (Simvastatin-HMPB-Mn@GOx) combined with the dual-pathway regulation of ferroptosis resistance and photothermal therapy for efficient tumor combination therapy. The manganese-bonded hollow mesoporous Prussian blue (HMPB-Mn) serves as the photothermal agent and metal donor, and dissociates multivalent metal ions Mn2+, Fe3+ and Fe2+ to consume glutathione and amplify the Fenton reaction. Glucose oxidase (GOx) absorbed serves as the converter to provide hydrogen peroxide (H2O2) for the cascade Fenton reaction, causing a high burst of hydroxyl radicals (˙OH) and lipid peroxidation. Simvastatin innovatively acts as a 3-hydroxy-3-methylglutaryl-CoA (HMG-CoA) inhibitor to decrease the expression of coenzyme Q10 (CoQ10) and glutathione peroxidase 4 (GPX4), eventually defeating ferroptosis resistance. The nanosystem acted in both classical and non-classical ferroptosis pathways and showed significant ferroptosis- and hyperthermia-induced anti-tumor efficacy both in vitro and in vivo. Thus, this study offers a promising way for ferroptosis and phototherapy to achieve complete tumor regression.
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Affiliation(s)
- Xinran Liu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Ping Guan
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Jiaxiang Mu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Zhaoxu Meng
- Department of Biomedical Engineering, School of Medical Instrumentation, Shenyang Pharmaceutical University, Shenyang, 110016, China.
| | - He Lian
- Department of Biomedical Engineering, School of Medical Instrumentation, Shenyang Pharmaceutical University, Shenyang, 110016, China.
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4
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Yu X, Gao Z, Mu J, Lian H, Meng Z. Gelatin/calcium chloride electrospun nanofibers for rapid hemostasis. Biomater Sci 2023; 11:2158-2166. [PMID: 36734397 DOI: 10.1039/d2bm01767a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Blood coagulation is the body's main defense to bleeding caused by trauma and is divided into endogenous and exogenous pathways. Calcium ions play a very important role in the process of blood coagulation, as the ions activate the many enzymes that are required for coagulation. In this paper, gelatin hemostatic membranes containing calcium ions were prepared by electrospinning. The fibers were characterized with scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray diffraction. The biocompatibility and coagulation processes using the calcium ion-containing gelatin fibrous membranes were evaluated in vitro with dynamic whole-blood coagulation tests, hemolysis tests, coagulation time tests, and platelet adhesion tests. It was demonstrated that the calcium ion-containing gelatin membranes had lower hemolysis rates and shorter clotting times than commercially available hemostatic sponges and hemostatic gauzes. In vivo hemostasis experiments were also conducted on the tail vein and liver of mice. Animal experiments demonstrated that the incorporation of calcium ions into the electrospun gelatin membranes promoted platelet aggregation, ensured adhesion of the electrospun membrane to the wound and reduced the bleeding volume and hemostasis time. The composite calcium ion-gelatin electrospun membranes exhibited good in vivo and in vitro hemostatic abilities and accelerated blood clotting by stimulating the coagulation pathway to promote platelet aggregation at the wounds and the formation of mature blood clots for a new approach for acute trauma treatment.
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Affiliation(s)
- Xinrong Yu
- Faculty of Medical Instrument, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Zichun Gao
- Faculty of Medical Instrument, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Jiaxiang Mu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - He Lian
- Faculty of Medical Instrument, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Zhaoxu Meng
- Faculty of Medical Instrument, Shenyang Pharmaceutical University, Shenyang 110016, China.
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Lian H, Liu HQ, Brower DL, Ding WX, Huang Y, Wang SX, Li WM, Chu YQ, Zhu RJ, Jie YX. Non-inductive plasma vertical position measurement for the 1056 s discharge on EAST. Rev Sci Instrum 2022; 93:103511. [PMID: 36319364 DOI: 10.1063/5.0101707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 09/01/2022] [Indexed: 06/16/2023]
Abstract
Vertical position stability plays a crucial role in maintaining safe and reliable plasma operation for long-pulse fusion devices. In general, the vertical position is measured by using inductive magnetic coils installed inside the vacuum vessel; however, the integration drift effects are inherent for steady-state or long-pulse plasma operation. Developing a non-magnetic approach provides a fusion reactor-relevant steady-state solution that avoids the negative impact of integration drift. In this paper, we compare the non-inductively determined vertical position achieved by line-integrated interferometer and polarimeter measurements to that employing an inductive flux loop for a 1056 s discharge recently achieved on EAST (Experimental Advanced Superconducting Tokamak). Experimental results show that the non-inductive measurement is more robust than flux loops after 300 s if the integrator is not reset to suppress integrator drift. Real-time vertical position control using the non-inductive system is proposed for the next EAST experimental campaign.
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Affiliation(s)
- H Lian
- University of California Los Angeles, Los Angeles, California 90095, USA
| | - H Q Liu
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - D L Brower
- University of California Los Angeles, Los Angeles, California 90095, USA
| | - W X Ding
- University of California Los Angeles, Los Angeles, California 90095, USA
| | - Y Huang
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - S X Wang
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - W M Li
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - Y Q Chu
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - R J Zhu
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - Y X Jie
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
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Li E, Zou XL, Xu LQ, Chu YQ, Feng X, Lian H, Liu HQ, Liu AD, Han MK, Dong JQ, Wang HH, Liu JW, Zang Q, Wang SX, Zhou TF, Huang YH, Hu LQ, Zhou C, Qu HX, Chen Y, Lin SY, Zhang B, Qian JP, Hu JS, Xu GS, Chen JL, Lu K, Liu FK, Song YT, Li JG, Gong XZ. Experimental Evidence of Intrinsic Current Generation by Turbulence in Stationary Tokamak Plasmas. Phys Rev Lett 2022; 128:085003. [PMID: 35275672 DOI: 10.1103/physrevlett.128.085003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 09/16/2021] [Accepted: 02/01/2022] [Indexed: 06/14/2023]
Abstract
High-β_{θe} (a ratio of the electron thermal pressure to the poloidal magnetic pressure) steady-state long-pulse plasmas with steep central electron temperature gradient are achieved in the Experimental Advanced Superconducting Tokamak. An intrinsic current is observed to be modulated by turbulence driven by the electron temperature gradient. This turbulent current is generated in the countercurrent direction and can reach a maximum ratio of 25% of the bootstrap current. Gyrokinetic simulations and experimental observations indicate that the turbulence is the electron temperature gradient mode (ETG). The dominant mechanism for the turbulent current generation is due to the divergence of ETG-driven residual flux of current. Good agreement has been found between experiments and theory for the critical value of the electron temperature gradient triggering ETG and for the level of the turbulent current. The maximum values of turbulent current and electron temperature gradient lead to the destabilization of an m/n=1/1 kink mode, which by counteraction reduces the turbulence level (m and n are the poloidal and toroidal mode number, respectively). These observations suggest that the self-regulation system including turbulence, turbulent current, and kink mode is a contributing mechanism for sustaining the steady-state long-pulse high-β_{θe} regime.
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Affiliation(s)
- Erzhong Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - X L Zou
- CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France
| | - L Q Xu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - Y Q Chu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - X Feng
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - H Lian
- University of California Los Angeles, Los Angeles, California 90095, USA
| | - H Q Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - A D Liu
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - M K Han
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, People's Republic of China
| | - J Q Dong
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, People's Republic of China
| | - H H Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - J W Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - Q Zang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - S X Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - T F Zhou
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - Y H Huang
- Advanced Energy Research Center, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - L Q Hu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - C Zhou
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - H X Qu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - Y Chen
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - S Y Lin
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - B Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - J P Qian
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - J S Hu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - G S Xu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - J L Chen
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - K Lu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - F K Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - Y T Song
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - J G Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - X Z Gong
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
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Lian H, Guan P, Tan H, Zhang X, Meng Z. Near-infrared light triggered multi-hit therapeutic nanosystem for tumor specific photothermal effect amplified signal pathway regulation and ferroptosis. Bioact Mater 2021; 9:63-76. [PMID: 34820556 PMCID: PMC8586267 DOI: 10.1016/j.bioactmat.2021.07.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 06/30/2021] [Accepted: 07/15/2021] [Indexed: 02/08/2023] Open
Abstract
The high therapeutic resistance of tumor is the primary cause behind tumor recurrence and incurability. In recent years, scientists have devoted themselves to find a variety of treatments to solve this problem. Herein, we propose a multi-hit strategy that is based on the biodegradable hollow mesoporous Prussian blue (HMPB)-based nanosystem for tumor-specific therapy that encapsulated the critical heat shock protein 90 (HSP90) inhibitor 17-dimethylamino-ethylamino-17-demethoxydeldanamycin (17-DMAG). The nanosystem was further modified using thermotropic phase transition material star-PEG-PCL (sPP) and hyaluronic acid (HA), which offers near infrared light (NIR) responsive release characteristic, as well as enhanced tumor cell endocytosis. Upon cell internalization of 17-DMAG-HMPB@sPP@HA and under 808 nm laser irradiation, photothermal-conversion effect of HMPB directly kills cells using hyperthermia, which further causes phase transition of sPP to trigger release of 17-DMAG, inhibits HSP90 activity and blocks multiple signaling pathways, including cell cycle, Akt and HIF pathways. Additionally, the down-regulation of GPX4 protein expression by 17-DMAG and the release of ferric and ferrous ions from gradual degradation of HMPB in the endogenous mild acidic microenvironment in tumors promoted the occurrence of ferroptosis. Importantly, the antitumor effect of 17-DMAG and ferroptosis damage were amplified using photothermal effect of HMPB by accelerating release of ferric and ferrous ions, and reducing HSP90 expression in cells, which induced powerful antitumor effect in vitro and in vivo. This multi-hit therapeutic nanosystem helps provide a novel perspective for solving the predicament of cancer treatment, as well as a promising strategy for design of a novel cancer treatment nanoplatform. The tumor specific multi-hit therapeutic nanosystem was constructed. The nanosystem exerts anti-tumor effect includes photothermal effect, cell signaling pathway regulation and ferroptosis. The synergistic 17-DMAG-HMPB@sPP@HA nanosystem offers a promising strategy for effective tumor therapies.
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Affiliation(s)
- He Lian
- Department of Biomedical Engineering, School of Medical Instrumentation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Ping Guan
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Hongyan Tan
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Xiaoshu Zhang
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Zhaoxu Meng
- Department of Biomedical Engineering, School of Medical Instrumentation, Shenyang Pharmaceutical University, Shenyang, 110016, China
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Ding B, Wu C, Li Y, Li M, Wang Y, Zhang B, Yan G, Liu H, Wang L, Wang M, Ding R, Hu H, Lian H, Cesario R, Tuccillo A, Baek S, Bonoli P, Ekedahl A, Shan J, Liu F, Qian J, Gong X, Wan B. Effect of edge plasma density on hot spot in LHCD plasma in EAST. Nuclear Materials and Energy 2021. [DOI: 10.1016/j.nme.2021.100992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Tang L, Zhou J, Zhao ZY, Wang HL, Jiang Q, Lian H, Wu X, Jiang LP, Han YQ, Ren GH, Deng WC. [Effect of integrated schistosomiasis control measures in Hunan Province from 2004 to 2019]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:230-235. [PMID: 32468783 DOI: 10.16250/j.32.1374.2020067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To examine the effect of the integrated schistosomiasis control measures in Hunan Province from 2004 to 2019, so as to provide insights into the development of the schistosomiasis elimination strategy. METHODS The integrated schistosomiasis control measures implemented by the health, agriculture, water resources, forestry, land and resources sectors were retrospectively collected in Hunan Province from 2004 to 2019, and the completion of each measure, cost of control measures, Schistosoma japonicum infections in humans and bovines, and snail status were analyzed each year. An index system for assessing the integrated schistosomiasis control effect was constructed using the Delphi method to calculate the integrated schistosomiasis control effect index. In addition, a cost-effect analysis was performed in terms of the decline in the prevalence of S. japonicum infections in humans and bovines, areas with snails in inner embankments, and areas with infected snails. RESULTS A total of 7 110 926 500 Yuan were invested into the integrated schistosomiasis control program of Hunan Province from 2004 to 2019. During the 16-year period, a total of 277 437.12 hm2 snail habitats received molluscicidal treatments, 6 927 230 person-times given expanded chemotherapy, 2 116 247 bovine-times given expanded chemotherapy, 954 850 harmless toilets built, 290 359 bovines fenced, 136 666 bovines eliminated, 141 905 machines used to replace bovines, 39 048.63 hm2 water lands improved as dry lands, 724.12 km irrigation regions improved, 3 994 300 populations covered with safe water, 191 102.89 hm2 forests planted and 38 535.27 hm2 lands leveled. The prevalence of S. japonicum infections was 4.29% in humans and 4.48% in bovines in Hunan Province in 2004, with 2 449.37 hm2 snail habitats in inner embankments and 3 423.74 hm2 infected snail areas. In 2019, the prevalence of S. japonicum infections reduced to 0 in both humans and bovines, and areas of snail habitats reduced to 540.92 hm2 (77.92% reductions), while the areas with infected snails reduced to 0. The overall integrated schistosomiasis control effect index appeared a tendency towards a rise over years since 2004, and the integrated schistosomiasis control effect index was 97.35 in 2019; the annual mean costs for a 1% reduction in the prevalence of S. japonicum infections in 100 populations and 100 bovines were 70.11 Yuan and 4 204.78 Yuan, and the annual mean costs for a 1% reduction in the snail areas in inner embankments and infected snail areas were 2 010.20 Yuan and 1 298.09 Yuan, respectively. CONCLUSIONS The integrated control measures achieve remarkable effectiveness for schistosomiasis control in Hunan Province, with a remarkable decline in the prevalence of S. japonicum infections in humans and bovines and great shrinking of snail areas in inner embankments and infected snail areas. Adequate fund investment is required to improve the integrated schistosomiasis control measures and consolidate the control achievements.
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Affiliation(s)
- L Tang
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - J Zhou
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - Z Y Zhao
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - H L Wang
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - Q Jiang
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - H Lian
- Ecological and Environmental Monitoring Center of Dongting Lake of Hunan Province, China
| | - X Wu
- Department of Parasitology, School of Basic Medical Sciences, Central South University, China
| | - L P Jiang
- Department of Parasitology, School of Basic Medical Sciences, Central South University, China
| | - Y Q Han
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - G H Ren
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - W C Deng
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
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Lian H, Liu HQ, Ding WX, Wang SX, Li WM, Chu YQ, Wang YF, Jie YX. Error correction associated with stray light for Faraday-effect polarimetry system on EAST. Rev Sci Instrum 2019; 90:053501. [PMID: 31153280 DOI: 10.1063/1.5089699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 04/27/2019] [Indexed: 06/09/2023]
Abstract
The polarimeter-interferometer system with 11 double-pass radial-view measurement chords has the ability to provide electron density and plasma current profiles, making it exceptionally useful in daily operation on the Experiment Advanced Superconducting Tokamak. However, due to limited optical access and intrinsic feedback, the stray lights arising from spurious reflections along the optical path (unwanted reflections from various optical components/mounts and transmissive optical elements such as windows, waveplates, and lenses as well as the detectors) distort the Faraday rotation measurements. Furthermore, the feedback light from the retro-reflector which is used to realize the double-pass configuration makes it even worse. A data processing approach to decrease the stray light influence is reported in this paper. Based on the theoretical model developed, the Faraday rotation angle is extracted by subtracting the deviation term which can be calculated with a simplified model. With this approach, the Faraday rotation oscillation during density ramp-up can be reduced from 2°-5° to 0.5°-1.5°, which reduces the Faraday rotation measurement errors significantly.
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Affiliation(s)
- H Lian
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - H Q Liu
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - W X Ding
- University of Science and Technology of China, Hefei, Anhui 230026, China
| | - S X Wang
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - W M Li
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - Y Q Chu
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - Y F Wang
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - Y X Jie
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
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11
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Li WM, Liu HQ, Zeng L, Wang SX, Lian H, Yang Y, Wei XC, Zhang Y, Li MG. Bench test of phase measurement on dispersion interferometer for EAST. Rev Sci Instrum 2019; 90:026105. [PMID: 30831737 DOI: 10.1063/1.5058705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 02/05/2019] [Indexed: 06/09/2023]
Abstract
In recent years, different traditional interferometers have been the necessary diagnostic of electronic density measurement on fusion devices. Until now, two main problems always influence the density measurement: the mechanical vibration and fringe jump in the calculation. The dispersion interferometer (DI) with a long-wavelength infrared wavelength is a good choice because mechanical vibrations can be canceled and the fringe jump can be inhibited. This paper describes the bench test of phase measurement using a wedge instead of plasma on the DI. The results show good agreement with the theoretical calculations. In the background measurement, this DI without a vibration isolation system has good performance, and the drift of the baseline is less than 2 × 1017 m-2 in 3 s and less than 5 × 1017 m-2 in 400 s. Plasma data will be obtained during the next campaign on EAST (Experimental and Advanced Superconducting Tokamak).
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Affiliation(s)
- W M Li
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - H Q Liu
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - L Zeng
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - S X Wang
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - H Lian
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Y Yang
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - X C Wei
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Y Zhang
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - M G Li
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
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12
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Wan L, Zihui Y, Aixi H, Jiao Y, Xiaoming O, Hui P, Lian H, Jianming L. Synthesis and fungicidal activities of 2-{[(2-(1H-1,2,4-triazol-1-yl)-ethylidene)amino]oxy}alkanamides containing dihydrobenzofuran. HETEROCYCL COMMUN 2018. [DOI: 10.1515/hc-2017-0245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Abstract
In order to find new compounds with high fungicidal activity, acetamide derivatives 4a–x were rationally designed, synthesized, characterized and tested against various fungi in vivo. The bioassay results indicate that compounds 4k,m,o,r exhibit an 80% inhibition rate against Rhizoctonia solani at 500 mg/L, and compound 4j shows an 80% inhibition rate against Blumeria graminis at 500 mg/L. Therefore, compounds of 4 are promising fungicidal candidates worthy of further development.
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13
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Meng Z, Zhang L, He Z, Lian H. Mucosal Penetrating Bioconjugate Coated Upconverting Nanoparticles That Integrate Biological Tracking and Photodynamic Therapy for Gastrointestinal Cancer Treatment. ACS Biomater Sci Eng 2018; 4:2203-2212. [DOI: 10.1021/acsbiomaterials.8b00359] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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14
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Ding W, Sun J, Lian H, Xu C, Liu X, Zheng S, Zhang D, Han X, Liu Y, Chen X, God′spower BO, Li Y. The Influence of Shuttle-Shape Emodin Nanoparticles on the Streptococcus suis Biofilm. Front Pharmacol 2018; 9:227. [PMID: 29593544 PMCID: PMC5859365 DOI: 10.3389/fphar.2018.00227] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 02/28/2018] [Indexed: 12/12/2022] Open
Abstract
Biofilm is one of the most important physiological protective barriers of the Streptococcus suis (S. suis), and it is also one of the primary causes of hindrance to drug infiltration, reduction of bactericidal effects, and the development of antibiotic resistance. In order to intervene or eliminate S. suis biofilm, shuttle-shape emodin-loaded nanoparticles were developed in our study. The emodin nanoparticles were prepared by emodin and gelatin-cyclodextrin which was synthesized as drug carrier, and the nanoparticles were 174 nm in size, -4.64 mv in zeta potential, and exhibited a sustained emodin release. Moreover, the delivery kinetics of nanoparticles were also explored in our study. The confocal laser scanning microscopy and colony forming unit enumeration experiment indicated that nanoparticles could increase drug infiltration and uptake by biofilm. The flow cytometry system analysis showed that nanoparticles could be up taken by 99% of the bacteria cells. TCP assay and scanning electron microscopy showed that the nanoparticles had better effect on biofilm inhibition and elimination when compared with emodin solution. These results revealed that the emodin nanoparticles had a better therapeutic effect on the S. suis biofilm in vitro.
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Affiliation(s)
- Wenya Ding
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Jin Sun
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - He Lian
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Changgeng Xu
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Xin Liu
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Sidi Zheng
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Dong Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Xiaopeng Han
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Yanyan Liu
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Xueying Chen
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Bello O. God′spower
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Yanhua Li
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
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15
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Zou ZY, Liu HQ, Ding WX, Chen J, Brower DL, Lian H, Wang SX, Li WM, Yao Y, Zeng L, Jie YX. Effects of stray lights on Faraday rotation measurement for polarimeter-interferometer system on EAST. Rev Sci Instrum 2018; 89:013510. [PMID: 29390693 DOI: 10.1063/1.5012820] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A double-pass radially view 11 chords polarimeter-interferometer system has been operated on the experimental advanced superconducting tokamak and provides important current profile information for plasma control. Stray light originating from spurious reflections along the optical path (unwanted reflections from various optical components/mounts and transmissive optical elements such as windows, waveplates, and lens as well as the detectors) and also direct feedback from the retro-reflector used to realize the double-pass configuration can both contribute to contamination of the Faraday rotation measurement accuracy. Modulation of the Faraday rotation signal due to the interference from multiple reflections is observable when the interferometer phase (plasma density) varies with time. Direct reflection from the detector itself can be suppressed by employing an optical isolator consisting of a λ/4-waveplate and polarizer positioned in front of the mixer. A Faraday angle oscillation during the density ramping up (or down) can be reduced from 5°-10° to 1°-2° by eliminating reflections from the detector. Residual modulation arising from misalignment and stray light from other sources must be minimized to achieve accurate measurements of Faraday rotation.
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Affiliation(s)
- Z Y Zou
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - H Q Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - W X Ding
- Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
| | - J Chen
- Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
| | - D L Brower
- Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
| | - H Lian
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - S X Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - W M Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y Yao
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - L Zeng
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y X Jie
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
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16
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Ding WY, Li YH, Lian H, Ai XY, Zhao YL, Yang YB, Han Q, Liu X, Chen XY, He Z. Sub-Minimum Inhibitory Concentrations of Rhubarb Water Extracts Inhibit Streptococcus suis Biofilm Formation. Front Pharmacol 2017; 8:425. [PMID: 28736523 PMCID: PMC5500959 DOI: 10.3389/fphar.2017.00425] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 06/14/2017] [Indexed: 12/28/2022] Open
Abstract
Streptococcus suis is one of the most important swine pathogens, which can cause persistent infection by forming biofilms. In this study, sub-minimum inhibitory concentration (sub-MIC) of rhubarb water extracts were found to inhibit biofilm formation. Two-component signal transduction systems (TCSs), transcriptional regulators, and DNA binding proteins were compared under two conditions: (1) cells treated with sub-MIC rhubarb water extracts and (2) untreated cells. Using an isobaric tags for relative and absolute quantitation (iTRAQ) strategy, we found that TCSs constituent proteins of histidine kinase and response regulator were significantly down-regulated. This down-regulation can affect the transfer of information during biofilm formation. The transcriptional regulators and DNA binding proteins that can interact with TCSs and interrupt gene transcription were also significantly altered. For these reasons, the levels of protein expressions varied in different parts of the treated vs. untreated cells. In summary, rhubarb water extracts might serve as potential inhibitor for the control of S. suis biofilm formation. The change in TCSs, transcriptional regulators, and DNA binding proteins may be important factors in S. suis biofilm inhibition.
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Affiliation(s)
- Wen-Ya Ding
- Department of Pharmacy, Shenyang Pharmaceutical UniversityShenyang, China.,Department of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
| | - Yan-Hua Li
- Department of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
| | - He Lian
- Department of Pharmacy, Shenyang Pharmaceutical UniversityShenyang, China
| | - Xiao-Yu Ai
- School of Pharmacy, Nankai UniversityTianjin, China
| | - Yu-Lin Zhao
- Department of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
| | - Yan-Bei Yang
- Department of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
| | - Qiang Han
- Department of Pharmacy, Shenyang Pharmaceutical UniversityShenyang, China.,Department of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
| | - Xin Liu
- Department of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
| | - Xue-Ying Chen
- Department of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
| | - Zhonggui He
- Department of Pharmacy, Shenyang Pharmaceutical UniversityShenyang, China
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17
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Lian H, He Z, Meng Z. Rational design of hybrid nanomicelles integrating mucosal penetration and P-glycoprotein inhibition for efficient oral delivery of paclitaxel. Colloids Surf B Biointerfaces 2017; 155:429-439. [PMID: 28463810 DOI: 10.1016/j.colsurfb.2017.04.045] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 04/08/2017] [Accepted: 04/19/2017] [Indexed: 01/10/2023]
Abstract
A dual functional TPGS-succinic acid-mercaptoethylamine (TPGS-SH) material was synthesized to improve the oral absorption of anticancer drugs, aiming to integrate the advantages of mucosal penetration with P-glycoprotein (P-gp) inhibition. Paclitaxel-loaded hybrid nanomicelles (CS-VES/TPGS-SH) with a uniform particle size (234.2-273.9nm), high drug loading (11.50±0.91%), and good encapsulation efficiency (86.18±3.73%) were fabricated. The absorption rate and apparent permeability coefficient were significantly improved in the whole intestine, especially in the duodenum segment, with a 3.68- and 3.22-fold enhancement being detected after perfusion with CS-VES/TPGS-SH hybrid nanomicelles. Moreover, TPGS-SH showed a considerable P-gp inhibition effect with verapamil. CS-VES/TPGS-SH nanomicelles can effectively pass through the mucosal layer and increase the intracellular drug content in duodenum, jejunum, and colon segments as further reflected by the in situ mucosal penetration study. Maximum concentration (Cmax) and area under curve (AUC(0-t)) values of hybrid nanomicelles were improved by 3.39- and 3.58-fold, respectively, compared to those of paclitaxel solution in rats. Therefore, the designed bifunctional hybrid CS-VES/TPGS-SH nanomicelles could function as efficient drug carriers, facilitating the oral absorption of hydrophobic anticancer drugs.
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Affiliation(s)
- He Lian
- Department of Biomedical Engineering, School of Medical Devices, Shenyang Pharmaceutical University, Shenyang, 110016, China.
| | - Zhonggui He
- School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Zhaoxu Meng
- Department of Biomedical Engineering, School of Medical Devices, Shenyang Pharmaceutical University, Shenyang, 110016, China
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18
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Lian H, Meng Z. Melt electrospinning of daunorubicin hydrochloride-loaded poly (ε-caprolactone) fibrous membrane for tumor therapy. Bioact Mater 2017; 2:96-100. [PMID: 29744416 PMCID: PMC5935042 DOI: 10.1016/j.bioactmat.2017.03.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 03/19/2017] [Indexed: 12/16/2022] Open
Abstract
Daunorubicin hydrochloride is a cell-cycle non-specific antitumor drug with a high therapeutic effect. The present study outlines the fabrication of daunorubicin hydrochloride-loaded poly (ε-caprolactone) (PCL) fibrous membranes by melt electrospinning for potential application in localized tumor therapy. The diameters of the drug-loaded fibers prepared with varying concentrations of daunorubicin hydrochloride (1, 5, and 10 wt%) were 2.48 ± 1.25, 2.51 ± 0.78, and 2.49 ± 1.58 μm, respectively. Fluorescence images indicated that the hydrophobic drug was dispersed in the hydrophilic PCL fibers in their aggregated state. The drug release profiles of the drug-loaded PCL melt electrospun fibrous membranes were approximately linear, with slow release rates and long-term release periods, and no observed burst release. The MTT assay was used to examine the cytotoxic effect of the released daunorubicin hydrochloride on HeLa and glioma cells (U87) in vitro. The inhibition ratios of HeLa and glioma cells following treatment with membranes prepared with 1, 5, and 10 wt% daunorubicin hydrochloride were 62.69%, 76.12%, and 85.07% and 62.50%, 77.27%, and 84.66%, respectively. Therefore, PCL melt electrospun fibrous membranes loaded with daunorubicin hydrochloride may be used in the local administration of oncotherapy. Daunorubicin hydrochloride-loaded PCL fibrous membranes were prepared by melt electrospinning. Hydrophilic drug was dispersed in the PCL melt electrospun fiber in the form of aggregation. Daunorubicin hydrochloride-loaded PCL fibrous membranes showed low drug release rate and long-term release periods.
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Affiliation(s)
- He Lian
- Department of Biomedical Engineering, School of Medical Devices, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Zhaoxu Meng
- Department of Biomedical Engineering, School of Medical Devices, Shenyang Pharmaceutical University, Shenyang, 110016, China
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19
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Ren G, Jiang M, Guo W, Sun B, Lian H, Wang Y, He Z. Construction and cellular uptake behavior of redox-sensitive docetaxel prodrug-loaded liposomes. Pharm Dev Technol 2017; 23:22-32. [DOI: 10.1080/10837450.2017.1287728] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Guolian Ren
- Department of Pharmaceutics, School of Pharmacy, Shanxi Medical University, Shanxi, China
| | - Mengjuan Jiang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Weiling Guo
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Bingjun Sun
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - He Lian
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Yongjun Wang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Zhonggui He
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
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20
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Luo Q, Yang B, Tao W, Li J, Kou L, Lian H, Che X, He Z, Sun J. ATB0,+ transporter-mediated targeting delivery to human lung cancer cells via aspartate-modified docetaxel-loading stealth liposomes. Biomater Sci 2017; 5:295-304. [DOI: 10.1039/c6bm00788k] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Tumor cells have an increased demand for amino acids to support their rapid growth and malignant metastasis.
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Affiliation(s)
- Qiuhua Luo
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
- Department of Pharmacy
| | - Bin Yang
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Wenhui Tao
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Jia Li
- College of life science and biological pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Longfa Kou
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - He Lian
- Department of Biomedical Engineering
- School of Medical Devices
- Shenyang Pharmaceutical University
- Shenyang
- China
| | - Xin Che
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Zhonggui He
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Jin Sun
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
- Municipal Key Laboratory of Biopharmaceutics
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21
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Liu HQ, Qian JP, Jie YX, Ding WX, Brower DL, Zou ZY, Li WM, Lian H, Wang SX, Yang Y, Zeng L, Lan T, Yao Y, Hu LQ, Zhang XD, Wan BN. Initial measurements of plasma current and electron density profiles using a polarimeter/interferometer (POINT) for long pulse operation in EAST (invited). Rev Sci Instrum 2016; 87:11D903. [PMID: 27910346 DOI: 10.1063/1.4963378] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A double-pass, radially viewing, far-infrared laser-based POlarimeter-INTerferometer (POINT) system utilizing the three-wave technique has been implemented for diagnosing the plasma current and electron density profiles in the Experimental Advanced Superconducting Tokamak (EAST). POINT has been operated routinely during the most recent experimental campaign and provides continuous 11 chord line-integrated Faraday effect and density measurement throughout the entire plasma discharge for all heating schemes and all plasma conditions (including ITER relevant scenario development). Reliability of both the polarimetric and interferometric measurements is demonstrated in 25 s plasmas with H-mode and 102 s long-pulse discharges. Current density, safety factor (q), and electron density profiles are reconstructed using equilibrium fitting code (EFIT) with POINT constraints for the plasma core.
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Affiliation(s)
- H Q Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - J P Qian
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y X Jie
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - W X Ding
- Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
| | - D L Brower
- Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
| | - Z Y Zou
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - W M Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - H Lian
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - S X Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y Yang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - L Zeng
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - T Lan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y Yao
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - L Q Hu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - X D Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - B N Wan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
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22
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Zou ZY, Liu HQ, Li WM, Lian H, Wang SX, Yao Y, Lan T, Zeng L, Jie YX. Optical configuration optimization and calibration for the POINT system on EAST. Rev Sci Instrum 2016; 87:11E121. [PMID: 27910327 DOI: 10.1063/1.4961272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Calibration of the polarimeter system is one of the key elements to determine the overall measurement accuracy. The anisotropic reflection and transmission properties of the mesh beam splitters can easily distort the polarization state of the circularly polarized beams. Using a rotating crystal quartz λ/2-waveplate to replace the plasma can effectively allow us to obtain the ratio of the measured Faraday rotation angle to the known rotation angle of the waveplate. This ratio is used to estimate the calibration factor for each chord to be accurately determined and help to minimize distortions introduced by the wire-mesh beam splitters. With the novel configuration optimization, the distortion of polarization state is effectively eliminated.
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Affiliation(s)
- Z Y Zou
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - H Q Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - W M Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - H Lian
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - S X Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y Yao
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - T Lan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - L Zeng
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y X Jie
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
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23
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Wang J, Du J, Miao C, Lian H. Raf-kinase inhibitor protein attenuates microglia inflammation in an in vitro model of intracerebral hemorrhage. Cell Mol Biol (Noisy-le-grand) 2016; 62:86-91. [PMID: 27262809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 05/22/2016] [Indexed: 06/05/2023]
Abstract
Microglia mediated neuroinflammation plays a crucial role in intracerebral hemorrhage (ICH). Raf kinase inhibitor protein (RKIP), a member of the phosphatidylethanolamine-binding protein (PEBP) family, is a negative regulator of inflammatory responses. However, the expression and anti-inflammatory effects of RKIP in microglia after ICH have not been reported. Therefore, in the current study, we investigated the effects of RKIP on inflammatory responses in erythrocyte lysate-treated BV2 microglia. Furthermore, we analyzed the detailed molecular mechanisms underlying the anti-inflammatory effects of RKIP in microglia. Our results showed that the expression level of RKIP was significantly decreased by erythrocyte lysate treatment in BV2 microglia. Overexpression of RKIP inhibited the production of pro-inflammatory molecules. In addition, overexpression of RKIP attenuated neuronal cell death induced by activated microglia. Moreover, RKIP suppressed the activation of NF-κB signaling pathway in erythrocyte lysis-treated BV2 cells. In conclusion, these data suggest that overexpression of RKIP attenuated microglia inflammation through inhibiting the NF-κB signaling pathway in erythrocyte lysis-treated BV2 cells. The present study provides evidence that RKIP may be used as an effective molecular target for the treatment of ICH.
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Affiliation(s)
- J Wang
- The First Affiliated Hospital of Xi'an Jiaotong University Emergency Department Xi'an China
| | - J Du
- The First Affiliated Hospital of Xi'an Jiaotong University Emergency Department Xi'an China
| | - C Miao
- The First Affiliated Hospital of Xi'an Jiaotong University Emergency Department Xi'an China
| | - H Lian
- The First Affiliated Hospital of X'an Jiaotong University Emergency Department Xi'an China
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24
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Wang X, Lian H, Nwogu C, D’Cunha J, Pang H. P0124 Short-term and long-term outcomes for video-assisted thoracoscopic surgery and open lobectomy: Results from statistical analysis adjusting for treatment selection bias. Eur J Cancer 2015. [DOI: 10.1016/j.ejca.2015.06.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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25
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Zhang D, Pan X, Wang S, Zhai Y, Guan J, Fu Q, Hao X, Qi W, Wang Y, Lian H, Liu X, Wang Y, Sun Y, He Z, Sun J. Multifunctional Poly(methyl vinyl ether-co-maleic anhydride)-graft-hydroxypropyl-β-cyclodextrin Amphiphilic Copolymer as an Oral High-Performance Delivery Carrier of Tacrolimus. Mol Pharm 2015; 12:2337-51. [PMID: 26024817 DOI: 10.1021/acs.molpharmaceut.5b00010] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In order to improve oral bioavailability of tacrolimus (FK506), a novel poly(methyl vinyl ether-co-maleic anhydride)-graft-hydroxypropyl-β-cyclodextrin amphiphilic copolymer (CD-PVM/MA) is developed, combining the bioadhesiveness of PVM/MA, P-glycoprotein (P-gp), and cytochrome P450-inhibitory effect of CD into one. The FK506-loaded nanoparticles (CD-PVM/MA-NPs) were obtained by solvent evaporation method. The physiochemical properties and intestinal absorption mechanism of FK506-loaded CD-PVM/MA-NPs were characterized, and the pharmacokinetic behavior was investigated in rats. FK506-loaded CD-PVM/MA-NPs exhibited nanometer-sized particles of 273.7 nm, with encapsulation efficiency as high as 73.3%. FK506-loaded CD-PVM/MA-NPs maintained structural stability in the simulated gastric fluid, and about 80% FK506 was released within 24 h in the simulated intestinal fluid. The permeability of FK506 was improved dramatically by CD-PVM/MA-NPs compared to its solution, probably due to the synergistic inhibition effect of P-gp and cytochrome P450 3A (CYP3A). The intestinal biodistribution of fluorescence-labeled CD-PVM/MA-NPs confirmed its good bioadhesion to the rat intestinal wall. Two endocytosis pathways, clathrin- and caveolae-mediated endocytosis, were involved in the cellular uptake of CD-PVM/MA-NPs. The important role of lymphatic transport in nanoparticles' access to the systemic circulation, about half of the contribution to oral bioavailability, was observed in mesenteric lymph duct ligated rats. The AUC0-24 of FK506 loaded in nanoparticles was enhanced up to 20-fold compared to FK506 solutions after oral administration. The present study suggested that the novel multifunctional CD-PVM/MA is a promising efficient oral delivery carrier for FK506, due to its ability in solubilization, inhibitory effects on both P-gp and CYP 3A, high bioadhesion, and sustained release capability.
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Affiliation(s)
- Dong Zhang
- †Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Xiaolei Pan
- †Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China.,‡Department of Pharmaceutics, Virginia Commonwealth University, Richmond, Virginia 23284-2526, United States
| | - Shang Wang
- †Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Yinglei Zhai
- ∥School of Medical Devices, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Jibin Guan
- †Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Qiang Fu
- †Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Xiaoli Hao
- †Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Wanpeng Qi
- †Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Yingli Wang
- †Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - He Lian
- ∥School of Medical Devices, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Xiaohong Liu
- †Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Yongjun Wang
- †Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Yinghua Sun
- †Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Zhonggui He
- †Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Jin Sun
- †Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China.,⊥Municipal Key Laboratory of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
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Li Z, Han X, Zhai Y, Lian H, Zhang D, Zhang W, Wang Y, He Z, Liu Z, Sun J. Critical determinant of intestinal permeability and oral bioavailability of pegylated all trans -retinoic acid prodrug-based nanomicelles: Chain length of poly (ethylene glycol) corona. Colloids Surf B Biointerfaces 2015; 130:133-40. [DOI: 10.1016/j.colsurfb.2015.03.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 02/15/2015] [Accepted: 03/16/2015] [Indexed: 11/25/2022]
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Liu D, Lian H, Wang J, Li X, Zhao Q, You Q. Efficacy of early bundle therapy on moderate to severe aspiration pneumonia after cervical esophagogastrostomy for esophageal cancer. Minerva Med 2015; 106:79-86. [PMID: 25517501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
AIM The aim of this paper was to investigate the methodology and clinical efficacy of early bundle therapy for complicated moderate to severe aspiration pneumonia after cervical esophagogastrostomy for esophageal cancer. METHODS A prospective study was conducted to analyze the clinical data from 49 patients who developed complicated moderate to severe aspiration pneumonia after cervical esophagogastrostomy for esophageal cancer. Among them, 27 patients underwent a bundle therapy-tracheostomy followed by ventilator-assisted breathing with reverse trendelenburg position, early goal-directed hemodynamic support, enteral nutrition by nasointestinal tube, effective antibiotic usage and large doses of expectorants in addition to the conventional treatments. The remaining 22 patients underwent conventional treatment (controls). The hospital fatality rates, incidence of serious complications, mechanical ventilation time and ICU length of stay of the two groups were compared. RESULTS Patients in the bundle therapy group had higher cure rate of pneumonia than the control group (P=0.041), significantly lower fatality rate than the controls (P=0.005), lower incidence of complications than the controls (P<0.05), shorter ICU length of stay than the control group (P=0.017), significantly shorter mechanical ventilation time (P=0.032), lower Acute Physiology and Chronic Health Evaluation II Score (P=0.036) and lower Clinical Pulmonary Infection Score (P=0.047). CONCLUSION Early bundle therapy can effectively improve the treatment efficacy for moderate to severe aspiration pneumonia after cervical esophagogastrostomy for esophageal cancer.
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Affiliation(s)
- D Liu
- Department of Gastroenterology, Affiliated Hospital of Jiangnan University, the Fourth People's Hospital of Wuxi City, Wuxi, People's Republic of China -
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Wang M, Sun J, Zhai Y, Lian H, Luo C, Li L, Du Y, Zhang D, Ding W, Qiu S, Liu Y, Kou L, Han X, Xiang R, Wang Y, He Z. Enteric polymer based on pH-responsive aliphatic polycarbonate functionalized with vitamin E to facilitate oral delivery of tacrolimus. Biomacromolecules 2015; 16:1179-90. [PMID: 25714622 DOI: 10.1021/bm501847u] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
To improve the bioavailability of orally administered drugs, we synthesized a pH-sensitive polymer (poly(ethylene glycol)-poly(2-methyl-2-carboxyl-propylene carbonate)-vitamin E, mPEG-PCC-VE) attempting to integrate the advantages of enteric coating and P-glycoprotein (P-gp) inhibition. The aliphatic polycarbonate chain was functionalized with carboxyl groups and vitamin E via postpolymerization modification. Optimized by comparison and central composite design, mPEG113-PCC32-VE4 exhibited low critical micelle concentration of 1.7 × 10(-6) mg/mL and high drug loading ability for tacrolimus (21.2% ± 2.7%, w/w). The pH-responsive profile was demonstrated by pH-dependent swelling and in vitro drug release. Less than 4.0% tacrolimus was released under simulated gastric fluid after 2.5 h, whereas an immediate release was observed under simulated intestinal fluid. The mPEG113-PCC32-VE4 micelles significantly increased the absorption of P-gp substrate tacrolimus in the whole intestine. The oral bioavailability of tacrolimus micelles was 6-fold higher than that of tacrolimus solution in rats. This enteric polymer therefore has the potential to become a useful nanoscale carrier for oral delivery of drugs.
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Affiliation(s)
- Menglin Wang
- †Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Jin Sun
- ‡Municipal Key Laboratory of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Yinglei Zhai
- §School of Medical Instrument, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - He Lian
- §School of Medical Instrument, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Cong Luo
- †Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Lin Li
- †Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Yuqian Du
- †Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Dong Zhang
- †Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Wenya Ding
- †Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Shuhong Qiu
- †Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Yuhai Liu
- †Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Longfa Kou
- †Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Xiangfei Han
- †Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Rongwu Xiang
- §School of Medical Instrument, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Yongjun Wang
- †Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Zhonggui He
- †Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
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Li D, Qin Z, Lian H, Yu G, Sheng Y, Liu F. Inheritance and quantitative trait locus analysis of low-light tolerance in cucumber (Cucumis sativus L.). Genet Mol Res 2015; 14:10609-18. [DOI: 10.4238/2015.september.9.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Lian H, Hong S, Carranza A, Mota-Morales JD, Pojman JA. Processing of lignin in urea–zinc chloride deep-eutectic solvent and its use as a filler in a phenol-formaldehyde resin. RSC Adv 2015. [DOI: 10.1039/c4ra16734a] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The main goal of our research deals with a new greener and more efficient lignin modification method to optimize its structural performance as a phenol-formaldehyde resin filler.
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Affiliation(s)
- H. Lian
- College of Wood Science and Technology
- Nanjing Forestry University
- Nanjing
- China
| | - S. Hong
- College of Wood Science and Technology
- Nanjing Forestry University
- Nanjing
- China
| | - A. Carranza
- Department of Chemistry
- Louisiana State University
- Baton Rouge
- USA
| | | | - J. A. Pojman
- Department of Chemistry
- Louisiana State University
- Baton Rouge
- USA
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Ai X, Sun J, Zhong L, Wu C, Niu H, Xu T, Lian H, Han X, Ren G, Ding W, Wang J, Pu X, He Z. Star-Shape Redox-Responsive PEG-Sheddable Copolymer of Disulfide-Linked Polyethylene Glycol-Lysine-di-Tocopherol Succinate for Tumor-Triggering Intracellular Doxorubicin Rapid Release: Head-to-Head Comparison. Macromol Biosci 2014; 14:1415-28. [DOI: 10.1002/mabi.201400149] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 05/02/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Xiaoyu Ai
- Department of Pharmaceutics, School of Pharmacy; Shenyang Pharmaceutical University; No. 103 Wenhua Road Shenyang 110016 P. R. China
| | - Jin Sun
- Department of Biopharmaceutics, School of Pharmacy; Shenyang Pharmaceutical University; No. 103 Wenhua Road Shenyang 110016 P. R. China
- Key Laboratory of Drug Delivery Technology and Pharmacokinetics; Tianjin Institute of Pharmaceutical Research; Tianjin P. R. China
| | - Lu Zhong
- Department of Pharmaceutics, School of Pharmacy; Shenyang Pharmaceutical University; No. 103 Wenhua Road Shenyang 110016 P. R. China
| | - Chunnuan Wu
- Department of Pharmaceutics, School of Pharmacy; Shenyang Pharmaceutical University; No. 103 Wenhua Road Shenyang 110016 P. R. China
| | - Handong Niu
- Department of Pharmaceutics, School of Pharmacy; Shenyang Pharmaceutical University; No. 103 Wenhua Road Shenyang 110016 P. R. China
| | - Tao Xu
- Department of Pharmaceutics, School of Pharmacy; Shenyang Pharmaceutical University; No. 103 Wenhua Road Shenyang 110016 P. R. China
| | - He Lian
- Department of Pharmaceutics, School of Pharmacy; Shenyang Pharmaceutical University; No. 103 Wenhua Road Shenyang 110016 P. R. China
| | - Xiaopeng Han
- Department of Pharmaceutics, School of Pharmacy; Shenyang Pharmaceutical University; No. 103 Wenhua Road Shenyang 110016 P. R. China
| | - Guolian Ren
- Department of Pharmaceutics, School of Pharmacy; Shenyang Pharmaceutical University; No. 103 Wenhua Road Shenyang 110016 P. R. China
| | - Wenya Ding
- Department of Pharmaceutics, School of Pharmacy; Shenyang Pharmaceutical University; No. 103 Wenhua Road Shenyang 110016 P. R. China
| | - Jia Wang
- Department of Pharmaceutics, School of Pharmacy; Shenyang Pharmaceutical University; No. 103 Wenhua Road Shenyang 110016 P. R. China
| | - Xiaohui Pu
- Pharmaceutical College of Henan University; Kaifeng 475004 P. R. China
| | - Zhonggui He
- Department of Pharmaceutics, School of Pharmacy; Shenyang Pharmaceutical University; No. 103 Wenhua Road Shenyang 110016 P. R. China
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Liu Y, Sun J, Lian H, Cao W, Wang Y, He Z. Folate and CD44 Receptors Dual-Targeting Hydrophobized Hyaluronic Acid Paclitaxel-Loaded Polymeric Micelles for Overcoming Multidrug Resistance and Improving Tumor Distribution. J Pharm Sci 2014; 103:1538-47. [DOI: 10.1002/jps.23934] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 01/17/2014] [Accepted: 01/29/2014] [Indexed: 11/09/2022]
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Zhang L, Ying S, An W, Lian H, Zhou G, Han Z. Effects of dietary betaine supplementation subjected to heat stress on milk performances and physiology indices in dairy cow. Genet Mol Res 2014; 13:7577-86. [DOI: 10.4238/2014.september.12.25] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Liu Y, Sun J, Lian H, Li X, Cao W, Bai L, Wang Y, He Z. Determination of paclitaxel in hyaluronic acid polymeric micelles in rat blood by protein precipitation-micelle breaking method: Application to a pharmacokinetic study. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 935:10-5. [DOI: 10.1016/j.jchromb.2013.07.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Revised: 07/02/2013] [Accepted: 07/11/2013] [Indexed: 10/26/2022]
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Lian H, Zhang T, Sun J, Liu X, Ren G, Kou L, Zhang Y, Han X, Ding W, Ai X, Wu C, Li L, Wang Y, Sun Y, Wang S, He Z. Enhanced Oral Delivery of Paclitaxel Using Acetylcysteine Functionalized Chitosan-Vitamin E Succinate Nanomicelles Based on a Mucus Bioadhesion and Penetration Mechanism. Mol Pharm 2013; 10:3447-58. [DOI: 10.1021/mp400282r] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
| | | | - Jin Sun
- Key Laboratory of Drug Delivery
Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical
Research, No. 308, Western Anshan Road, Tianjin, 300193, P. R. China
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Zhang Y, Sun J, Gao Y, Jin L, Xu Y, Lian H, Sun Y, Sun Y, Liu J, Fan R, Zhang T, He Z. A Carrier-Mediated Prodrug Approach To Improve the Oral Absorption of Antileukemic Drug Decitabine. Mol Pharm 2013; 10:3195-202. [DOI: 10.1021/mp400233x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Youxi Zhang
- Department of Biopharmaceutics, Shenyang Pharmaceutical University, No. 103, Wenhua
Road, Shenyang, 110016, China
| | - Jin Sun
- Department of Biopharmaceutics, Shenyang Pharmaceutical University, No. 103, Wenhua
Road, Shenyang, 110016, China
| | - Yikun Gao
- Department of Biopharmaceutics, Shenyang Pharmaceutical University, No. 103, Wenhua
Road, Shenyang, 110016, China
| | - Ling Jin
- Department of Biopharmaceutics, Shenyang Pharmaceutical University, No. 103, Wenhua
Road, Shenyang, 110016, China
| | - Youjun Xu
- Department of Medicinal Chemistry, Shenyang Pharmaceutical University, No. 103, Wenhua
Road, Shenyang, 110016, China
| | - He Lian
- Department of Biopharmaceutics, Shenyang Pharmaceutical University, No. 103, Wenhua
Road, Shenyang, 110016, China
| | - Yongbing Sun
- National Pharmaceutical Engineering
Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine,
No. 56, Yangming Road, Nanchang, 330006, China
| | - Yinghua Sun
- Department of Biopharmaceutics, Shenyang Pharmaceutical University, No. 103, Wenhua
Road, Shenyang, 110016, China
| | - Jianyu Liu
- Department of Medicinal Chemistry, Shenyang Pharmaceutical University, No. 103, Wenhua
Road, Shenyang, 110016, China
| | - Rui Fan
- Department of Biopharmaceutics, Shenyang Pharmaceutical University, No. 103, Wenhua
Road, Shenyang, 110016, China
| | - Tianhong Zhang
- Department of Biopharmaceutics, Shenyang Pharmaceutical University, No. 103, Wenhua
Road, Shenyang, 110016, China
| | - Zhonggui He
- Department of Biopharmaceutics, Shenyang Pharmaceutical University, No. 103, Wenhua
Road, Shenyang, 110016, China
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Wu C, Sun L, Sun J, Yang Y, Ren C, Ai X, Lian H, He Z. Profiling biopharmaceutical deciding properties of absorption of lansoprazole enteric-coated tablets using gastrointestinal simulation technology. Int J Pharm 2013; 453:300-6. [PMID: 23806811 DOI: 10.1016/j.ijpharm.2013.06.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Revised: 05/03/2013] [Accepted: 06/13/2013] [Indexed: 01/19/2023]
Abstract
The aim of the present study was to correlate in vitro properties of drug formulation to its in vivo performance, and to elucidate the deciding properties of oral absorption. Gastrointestinal simulation technology (GST) was used to simulate the in vivo plasma concentration-time curve and was implemented by GastroPlus™ software. Lansoprazole, a typical BCS class II drug, was chosen as a model drug. Firstly, physicochemical and pharmacokinetic parameters of lansoprazole were determined or collected from literature to construct the model. Validation of the developed model was performed by comparison of the predicted and the experimental plasma concentration data. We found that the predicted curve was in a good agreement with the experimental data. Then, parameter sensitivity analysis (PSA) was performed to find the key parameters of oral absorption. The absorption was particularly sensitive to dose, solubility and particle size for lansoprazole enteric-coated tablets. With a single dose of 30 mg and the solubility of 0.04 mg/ml, the absorption was complete. A good absorption could be achieved with lansoprazole particle radius down to about 25 μm. In summary, GST is a useful tool for profiling biopharmaceutical deciding properties of absorption of lansoprazole enteric-coated tablets and guiding the formulation optimization.
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Affiliation(s)
- Chunnuan Wu
- Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
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Zhang Y, Sun J, Gao Y, Kong Y, Xu Y, Jia W, Liao C, Zhang P, Lian H, Han X, Li D, Geng Y, He Z. An HPLC-MS/MS method for simultaneous determination of decitabine and its valyl prodrug valdecitabine in rat plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 917-918:78-83. [PMID: 23369881 DOI: 10.1016/j.jchromb.2012.12.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 12/21/2012] [Accepted: 12/22/2012] [Indexed: 10/27/2022]
Abstract
A simple and sensitive HPLC-MS/MS method was developed and validated for the simultaneous determination of decitabine and valdecitabine in rat plasma. The analytes were separated on a C(18) column (150mm×4.6mm, 3.5μm) and a triple-quadrupole mass spectrometer equipped with an electrospray ionization (ESI) source was applied for detection. A clean solid-phase extraction procedure with cation exchange cartridge was employed to extract the analytes from rat plasma with high recovery of decitabine (>82%). The calibration curves were linear over a concentration range of 10-10,000ng/mL for decitabine and 5-500ng/mL for valdecitabine. The lower limit of quantitation (LLOQ) of decitabine and valdecitabine was 10 and 5ng/mL, respectively. The intra-day and inter-day precisions were less than 15% and the relative error (RE) was all within ±15%. The validated method was successfully applied to a pharmacokinetics study in rats after either decitabine or valdecitabine orally administrated to the Sprague-Dawley rats.
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Affiliation(s)
- Youxi Zhang
- Department of Biopharmaceutics, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
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Hu X, Ding Z, Liu X, Yao F, Lian H. Lead Content and Isotope Composition in Surface Sediments in Western Xiamen Bay and Its Vicinity: Implication for Possible Source. ACTA ACUST UNITED AC 2013. [DOI: 10.14233/ajchem.2013.13598] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Lian H, Sun J, Yu YP, Liu YH, Cao W, Wang YJ, Sun YH, Wang SL, He ZG. Supramolecular micellar nanoaggregates based on a novel chitosan/vitamin E succinate copolymer for paclitaxel selective delivery. Int J Nanomedicine 2011; 6:3323-34. [PMID: 22228999 PMCID: PMC3252679 DOI: 10.2147/ijn.s26305] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Background Nowadays, many cytotoxic anticancer drugs exhibit low solubility and poor tumor selectivity, which means that the drug formulation is very important. For example, in the case of paclitaxel (PTX), Cremophor EL® (BASF, Ludwigshafen, Germany) needs to be used as a solubilizer in its clinical formulation (Taxol®, Bristol-Myers Squibb, New York, NY), although it can cause serious side effects. Nanomicellar systems are promising carriers to resolve the above problems, and the polymer chosen is the key element. Methods In this study, a novel amphiphilic chitosan/vitamin E succinate (CS-VES) copolymer was successfully synthesized for self-assembling polymeric micelles. Proton nuclear magnetic resonance spectroscopy and infrared were used to characterize the molecular structure of the copolymer. The PTX-loaded CS-VES polymeric micelles (PTX-micelles) were characterized by dynamic light scattering, transmission electron microscopy, X-ray diffraction, and differential scanning calorimetry. Results The critical micelle concentration of CS-VES was about 12.6 μg/mL, with the degree of amino group substitution being 20.4%. PTX-micelles were prepared by a nanoprecipitation/dispersion technique without any surfactant being involved. PTX-micelles exhibited a drug loading as high as 21.37% and an encapsulation efficiency of 81.12%, with a particle size ranging from 326.3 to 380.8 nm and a zeta potential of +20 mV. In vitro release study showed a near zero-order sustained release, with 51.06%, 50.88%, and 44.35% of the PTX in the micelles being released up to 168 hours at three drug loadings of 7.52%, 14.09%, and 21.37%, respectively. The cellular uptake experiments, conducted by confocal laser scanning microscopy, showed an enhanced cellular uptake efficiency of the CS-VES micelles in MCF-7 cells compared with Taxol. The PTX-micelles exhibited a comparable but delayed cytotoxic effect compared with Taxol against MCF-7 cells, due to the sustained-release characteristics of the nanomicelles. More interestingly, blank nanomicelles based on CS-VES copolymer demonstrated significant cytotoxicity against MCF-7 cells. Conclusion The supramolecular micellar aggregates based on CS-VES copolymer is a promising nanocarrier and efficacy enhancer when used as an anticancer drug-delivery system.
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Affiliation(s)
- He Lian
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, People’s Republic of China
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Liu Y, Sun J, Cao W, Yang J, Lian H, Li X, Sun Y, Wang Y, Wang S, He Z. Dual targeting folate-conjugated hyaluronic acid polymeric micelles for paclitaxel delivery. Int J Pharm 2011; 421:160-9. [PMID: 21945183 DOI: 10.1016/j.ijpharm.2011.09.006] [Citation(s) in RCA: 153] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Revised: 09/04/2011] [Accepted: 09/11/2011] [Indexed: 12/18/2022]
Abstract
A series of novel self-assembled hyaluronic acid derivatives (HA-C(18)) grafted with hydrophobic octadecyl moiety and further dual targeting folic acid-conjugated HA-C(18) (FA-HA-C(18)) were synthesized. With the increase in the degree of substitution of octadecyl group from 12.7% to 19.3%, the critical micellar concentration of HA-C(18) copolymers decreased from 37.3 to 10.0 μg/mL. Paclitaxel (PTX) was successfully encapsulated into the hydrophobic cores of the HA-C(18) and FA-HA-C(18) micelles, with encapsulation efficiency as high as 97.3%. The physicochemical properties of the polymeric micelles were measured by DLS, TEM and DSC. Moreover, in vitro release behavior of PTX was investigated by dialysis bag method and PTX was released from micelles in a near zero-order sustained manner. In vitro antitumor activity tests suggested PTX-loaded HA-C(18) and FA-HA-C(18) micelles exhibited significantly higher cytotoxic activity against MCF-7 and A549 cells compared to Taxol at a lower PTX concentration. The cellular uptake experiments were conducted by quantitative assay of PTX cellular accumulation and confocal laser scanning microscopy imaging of coumarin-6 labeled HA-C(18) and FA-HA-C(18) micelles in folate receptor overexpressing MCF-7 cells. Folate and CD44 receptor competitive inhibition studies performed by fluorescence microscopy imaging suggested intracellular delivery of HA-C(18) and FA-HA-C(18) micelles were efficiently taken up via CD44 receptor-mediated endocytosis. The folate receptor-mediated endocytosis further enhanced internalized amounts of FA-HA-C(18) micelles in MCF-7 cells, as compared with HA-C(18) micelles. The internalization pathways of PTX-loaded HA-C(18) and FA-HA-C(18) micelles might include clathrin-mediated endocytosis, caveolae-mediated endocytosis and macropinocytosis. Therefore, the present study suggested that HA-C(18) and FA-HA-C(18) copolymers as biodegradable, biocompatible and cell-specific targetable nanostructure carriers, are promising nanosystems for cellular and intracellular targeting delivery of hydrophobic anticancer drugs.
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Affiliation(s)
- Yanhua Liu
- Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, China
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Li X, An J, Guo R, Jin Z, Li Y, Zhao Y, Lu F, Lian H, Liu P, Zhao Y, Jin X. Association of the genetic polymorphisms of the ACE gene and the eNOS gene with lupus nephropathy in northern Chinese population. BMC Med Genet 2010; 11:94. [PMID: 20540812 PMCID: PMC2903533 DOI: 10.1186/1471-2350-11-94] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/19/2010] [Accepted: 06/14/2010] [Indexed: 11/10/2022]
Abstract
BACKGROUND It has been reported that some single nucleotide polymorphisms (SNPs) of the angiotensin converting enzyme (ACE) gene and the endothelial nitric oxide synthase (eNOS) gene are associated with the development of systemic lupus erythematosus (SLE) and the progression of nephropathy. The aim of this study was to evaluate the possible association between six SNPs (A-5466C, T-3892C, A-240T, C1237T, G2215A and A2350G) of the ACE gene and two SNPs (T-786C and G894T) of the eNOS gene with lupus nephropathy in a northern Chinese population. METHODS In this study, 225 patients with lupus nephropathy were compared to 232 healthy controls, matched by gender, age and ethnicity. Following the extraction of genomic DNA from the leukocytes in the peripheral blood, the genotypes of the eight selected SNPs were determined by the method of PCR-RFLP; the haplotypes were inferred using PHASE 2.1. The associations between the SNPs and the risk of lupus nephropathy were analyzed using Chi-square test and Logistic regression with SPSS13.0 software. RESULTS Statistically significant differences of the allele frequency distribution of three SNPs (A-5466C, A2350G and G894T) were observed between cases and controls (P<0.05). Among the 53 haplotypes identified, the frequencies of five haplotypes (CTTCGA, ACTTAA, ACATGG, ACACGG and ATTCGA) were significantly different between cases and controls (P<0.05). CONCLUSIONS Our study indicated an association between the risk of lupus nephropathy and the sequence variations of both the ACE gene and the eNOS gene, which may play an important role in the pathogenesis of lupus nephropathy in the northern Chinese population. Further studies are warranted to validate our findings.
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Affiliation(s)
- X Li
- Department of Rheumatology, the Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, PR China
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Adikari SB, Lian H, Link H, Huang YM, Xiao BG. Interferon-gamma-modified dendritic cells suppress B cell function and ameliorate the development of experimental autoimmune myasthenia gravis. Clin Exp Immunol 2004; 138:230-6. [PMID: 15498031 PMCID: PMC1809213 DOI: 10.1111/j.1365-2249.2004.02585.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2004] [Indexed: 11/27/2022] Open
Abstract
This study was designed to investigate the therapeutic effects of interferon (IFN)-gamma-modulated dendritic cells (DC) in experimental autoimmune myasthenia gravis (EAMG). We induced EAMG in Lewis rats by immunization with Torpedo nicotinic acetylcholine receptor (nAChR) and adjuvant. On day 33 post-immunization (p.i.), splenic DC were prepared, exposed to IFN-gamma alone (IFN-gamma-DC) or to IFN-gamma in combination with 1-methyl-DL-tryptophan (1-MT), the specific inhibitor of indoleamine 2,3-dioxygenase (IDO) (IFN-gamma + 1-MT-DC), and injected subcutaneously into rats with incipient EAMG on day 5 p.i. A control group of EAMG rats received naive DC on day 5 p.i., while another group received 1-MT every other day, intraperitoneally (p.i.), from days 5 to 41 p.i. The severity of clinical signs of EAMG was reduced dramatically in IFN-gamma-DC-treated rats compared to rats receiving naive DC, IFN-gamma + 1-MT-DC or 1-MT alone. The number of plasma cells secreting nAChR antibodies was reduced and the expression of B cell activation factor (BAFF) on splenic and lymph node mononuclear cells (MNC) was down-regulated in rats treated with IFN-gamma-DC. In vitro co-culture of MNC derived from EAMG rats with IFN-gamma-DC produced relatively few cells secreting nAChR antibodies. Addition of 1-MT to the co-culture significantly increased the number of cells secreting nAChR antibodies. We conclude that IFN-gamma-DC reduced the number of plasma cells secreting nAChR antibodies in an IDO-dependent manner and ameliorated the development of EAMG in Lewis rats.
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Affiliation(s)
- S B Adikari
- Division of Neuroimmunology, Neurotec Department, Karolinska Institute, Stockholm, Sweden
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Pettersson A, Wu XC, Ciumas C, Lian H, Chirsky V, Huang YM, Bjelke B, Link H, Xiao BG. CD8alpha dendritic cells and immune protection from experimental allergic encephalomyelitis. Clin Exp Immunol 2004; 137:486-95. [PMID: 15320897 PMCID: PMC1809141 DOI: 10.1111/j.1365-2249.2004.02556.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Dendritic cells (DC) represent a phenotypically heterogeneous population endowed with two important biological functions, immunity and tolerance. Here we report that the injection of splenic CD8alpha(+) DC, derived from rats with experimental allergic encephalomyelitis (EAE), delayed the onset and suppressed the severity of EAE in Lewis rats. This was accompanied by the lack of magnetic resonance imaging (MRI) lesions in the brain and spinal cord and by reduced numbers of inflammatory cells within the central nervous system. Injection of CD8(alpha+) DC inhibited T cell proliferation that may relate to increased interferon (IFN)-gamma and nitric oxide production. Although CD8(+)CD28(-) suppressor T cells, apoptotic cells and co-stimulatory molecules were not altered, CD4(+) T cells expressing interleukin (IL)-10 were augmented in rats receiving CD8alpha(+) DC compared to rats receiving total DC or medium. These results demonstrate that rat splenic CD8alpha(+) DC could provide a cellular basis for a novel, individualized immunotherapy using autologous DC as a complement to conventional therapy in diseases with an autoimmune background such as multiple sclerosis.
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Affiliation(s)
- A Pettersson
- Division of Neuroimmunology, Neurotec Department, Fudan Univerity, Shanghai, China
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Lu Y, Lian H, Sharma P, Schreiber-Agus N, Russell RG, Chin L, van der Horst GT, Bregman DB. Disruption of the Cockayne syndrome B gene impairs spontaneous tumorigenesis in cancer-predisposed Ink4a/ARF knockout mice. Mol Cell Biol 2001; 21:1810-8. [PMID: 11238917 PMCID: PMC86742 DOI: 10.1128/mcb.21.5.1810-1818.2001] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2000] [Accepted: 11/30/2000] [Indexed: 11/20/2022] Open
Abstract
Cells isolated from individuals with Cockayne syndrome (CS) have a defect in transcription-coupled DNA repair, which rapidly corrects certain DNA lesions located on the transcribed strand of active genes. Despite this DNA repair defect, individuals with CS group A (CSA) or group B (CSB) do not exhibit an increased spontaneous or UV-induced cancer rate. In order to investigate the effect of CSB deficiency on spontaneous carcinogenesis, we crossed CSB(-/-) mice with cancer-prone mice lacking the p16(Ink4a)/p19(ARF) tumor suppressor locus. CSB(-/-) mice are sensitive to UV-induced skin cancer but show no increased rate of spontaneous cancer. CSB(-/-) Ink4a/ARF(-/-) mice developed 60% fewer tumors than Ink4a/ARF(-/-) animals and demonstrated a longer tumor-free latency time (260 versus 150 days). Moreover, CSB(-/-) Ink4a/ARF(-/-) mouse embryo fibroblasts (MEFs) exhibited a lower colony formation rate after low-density seeding, a lower rate of H-Ras-induced transformation, slower proliferation, and a lower mRNA synthesis rate than Ink4a/ARF(-/-) MEFs. CSB(-/-) Ink4a/ARF(-/-) MEFs were also more sensitive to UV-induced p53 induction and UV-induced apoptosis than were Ink4a/ARF(-/-) MEFs. In order to investigate whether the apparent antineoplastic effect of CSB gene disruption was caused by sensitization to genotoxin-induced (p53-mediated) apoptosis or by p53-independent sequelae, we also generated p53(-/-) and CSB(-/-) p53(-/-) MEFs. The CSB(-/-) p53(-/-) MEFs demonstrated lower colony formation efficiency, a lower proliferation rate, a lower mRNA synthesis rate, and a higher rate of UV-induced cell death than p53(-/-) MEFs. Collectively, these results indicate that the antineoplastic effect of CSB gene disruption is at least partially p53 independent; it may result from impaired transcription or from apoptosis secondary to environmental or endogenous DNA damage.
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Affiliation(s)
- Y Lu
- Department of Pathology, Albert Einstein College of Medicine, Bronx, New York 10461, USA
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Lian H, Steiner SS, Sofia RD, Woodhead JH, Wolf HH, White HS, Shen GS, Rhodes CA, McCabe RT. A self-complementary, self-assembling microsphere system: application for intravenous delivery of the antiepileptic and neuroprotectant compound felbamate. J Pharm Sci 2000; 89:867-75. [PMID: 10861587 DOI: 10.1002/1520-6017(200007)89:7<867::aid-jps3>3.0.co;2-s] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Felbamate (FBM) is a novel antiepileptic drug (AED) and neuroprotectant (NP) compound that interacts with strychnine-insensitive (SI) glycine receptors in brain (IC(50) = 374 microM). FBM concentrations required to interact with SI glycine receptors are consistent with brain levels following oral and intraperitoneal administration of AED and NP doses. Because of the solubility limits of FBM, an intravenous (iv) form has not been developed. Nevertheless, an iv form could be important for the treatment of disorders such as status epilepticus and neuronal damage due to hypoxic/ischemic events. Substituted diketopiperazines precipitate in acid to form microspherical particles of uniform size ( approximately 2 microm). The microsphere system entraps drugs on precipitation and dissolves near physiological pH to release the drug cargo. Therefore, microspheres were used to produce an iv formulation of FBM. Mice were administered the FBM/microsphere (20-60 mg/kg FBM) and tested for protection against tonic extension seizures using maximal electroshock. The FBM/microsphere was effective in a time- and dose-dependent manner following iv administration. The median effective dose (ED(50)) for protection against MES seizures at 30 min was 27.2 mg/kg [95% confidence interval (CI) = 20.8-33.4, slope = 6.5]. The ED(50) for minimal motor impairment at 30 min was 167 mg/kg (95% CI = 155-177, slope = 28.1). Thus, the feasibility of encapsulating FBM or similar aqueous insoluble compounds in a microsphere system with delivery by the iv route for treatment of epilepsy and various central nervous system disorders has been clearly demonstrated. Studies were performed in accordance with the Guide for the Care and Use of Laboratory Animals.
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Affiliation(s)
- H Lian
- Pharmaceutical Discovery Corporation, Elmsford, New York 10523, USA
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Zhu S, Zhang Q, Wang L, Chen J, Lian H. Effect of ozonation of naphthalene derivatives on their elimination, TOC, and biodegradability. Bull Environ Contam Toxicol 1999; 63:101-108. [PMID: 10423490 DOI: 10.1007/s001289900954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Affiliation(s)
- S Zhu
- State Key Laboratory of Pollution Control and Resource Reuse, Department of Environmental Science and Engineering, Nanjing University, 210093, Nanjing, People's Republic of China
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Lian H, Li S, Cao X, Pan S, Liang S. [Malonaldehyde, superoxide dismutase and human cataract]. Yan Ke Xue Bao 1993; 9:186-9, 170. [PMID: 7957853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
UV-spectrophotometry and fluorometry were used to study Malonaldehyde (MDA) and Superoxide Dismutase (SOD) in normal, cataractous human lenses and red blood cells of the patients with cataract. MDA content of senile and complicated cataractous lenses was significantly higher than that of normal human lenses, while that of complicated cataract was significantly higher than that of senile cataract. SOD activity of senile and complicated cataractous lenses was significantly lower than that of normal human lenses, while there was no marked difference between senile and complicated cataractous lenses. Significant correlation between cataractous lenses and red blood cells was not found in MDA content and SOD activity. There was a negative correlation between SOD and MDA in normal human lenses, but no correlation between SOD and MDA in cataractous lenses. The study shows that lipid peroxidation may be one of the possible mechanisms of cataractogenesis in human, and emphasizes the role of SOD in prevention of photoperoxidative damages to the tissues.
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Affiliation(s)
- H Lian
- Zhongshan Ophthalmic Center, Sun Yat-Sen University of Medical Sciences, Guangzhou, China
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